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dc.contributor.authorLoubser, Susan Ilani
dc.contributor.authorSánchez-Blázquez, P.
dc.date.accessioned2012-11-12T09:27:58Z
dc.date.available2012-11-12T09:27:58Z
dc.date.issued2011
dc.identifier.citationLoubser, S.I. & Sánchez-Blázquez, P. 2011. Mg2 gradients as a signature of brightest cluster galaxy evolution. Monthly notices of the Royal Astronomical Society, 415(4):3013-3020. [http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291365-2966/]en_US
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/7747
dc.description.abstractWe have fitted the Mg2 absorption index gradients for 21 brightest cluster galaxies (BCGs), in the nearby Universe, for which we have obtained high signal-to-noise ratio, long-slit spectra on the Gemini telescopes. This is a subsample of a large optical, spatially resolved, spectroscopic sample of BCGs which allows possible connections between the kinematical, dynamical and stellar population properties to be studied. We find a weak correlation between the Mg2 gradients and central velocity dispersion, with gradients becoming steeper with increasing mass. An equivalent correlation for normal ellipticals in the same mass range is not found, suggesting that the BCG stellar population profiles are shaped by mechanisms related to the potential well of the cluster where they live. This suggestion is reinforced by the existence of a correlation between the Mg2 gradients and the BCG distance to the X-ray peak luminosity of the cluster.en_US
dc.description.urihttp://dx.doi.org/10.1111/j.1365-2966.2011.18909.x
dc.description.urihttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2011.18909.x/pdf
dc.language.isoenen_US
dc.publisherWileyen_US
dc.subjectGalaxies: elliptical and lenticulE, cDen_US
dc.subjectgalaxies: evolutionen_US
dc.subjectgalaxies: stellar contenten_US
dc.titleMg2 gradients as a signature of brightest cluster galaxy evolutionen_US
dc.typeArticleen_US


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